Might be worthwhile dropping an email to this seller?
https://www.ebay.co.uk/sch/i.html?_f...ition=4&_pgn=2

The listing is for a washer bag but the photograph shows a 3 bladed fan switch plus the interior light switch and multiple holders. You could also ask for the wiring holders for a set of 5 switches, AFAIK they're all the same.

No connection to the seller.
Guy